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JavaScript 中 for、forEach、for...in、for...of 循环的区别和使用
forEach 是 JavaScript 数组对象的一个方法,用于遍历数组的每个元素,并对每个元素执行指定的回调函数。 JavaScript 中有多种循环语句,包括传统的 for 循环、forEach 方法、for...in 循环和 for...of 循环。这些循环语句各有特点,适用于不同的场景。下面将分别介绍它们 ...
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